Q4) How do we write a note on a piece of paper if we are at outerspace where there is no air??

Q5) There is a two stories bungalow house. And two lightbulbs are at the second floor yet the switches are at the first floor. How do we test which bulb is working and which bulb is not working??WARNING:This can only be tested in the daylight and not in the night-time. You are not allow to go up to the second floor for more than one time!

Q4) How do we write a note on a piece of paper if we are at outerspace where there is no air??just write on the note

Q5) There is a two stories bungalow house. And two lightbulbs are at the second floor yet the switches are at the first floor. How do we test which bulb is working and which bulb is not working??WARNING:This can only be tested in the daylight and not in the night-time. You are not allow to go up to the second floor for more than one time!

first make sure both switches are off, then flip the switches, next check of the came on